package main

import (
	"fmt"
	"runtime"
)

func ai() int {
	fmt.Println(1)
	return 0
}
func main()  {
	ch := make(chan int,1)
	fmt.Println(len(ch))
	ch<-0
	//ch<-1
	//ch<-2
	fmt.Println(len(ch))
	fmt.Println(runtime.NumCPU())
	ai()
}
